No joke: When 62-year-old Wheaton native Jim Belushi met with casting directors for the top-secret "Twin Peaks" revival, he thought he was auditioning for "some kind of porno film."

"My agent called me and gave me an address to a warehouse deep in the valley, and he said, 'Just go, they just want to talk to you,' and I said, 'all right,'" Belushi recently told Entertainment Weekly. "And I walked into this room and there was two women and a video camera in a warehouse in the valley, and I thought that this was some kind of porno film that he was sending me on."

Belushi, who was in town May 18 to throw out the first pitch at Wrigley Field, said he got a call three weeks later that the meeting was for Showtime's "Twin Peaks" reboot. Little is known about Belushi's character, one of dozens of new faces on the 18-episode revival. This much is true: He didn't appear on the two-part premiere and he's not on the two episodes scheduled to air 8 p.m. Sunday.

Since the creators have kept details of the plot shrouded in secrecy, Belushi provided few hints in a press tour to promote the series. A picture of his character wearing a suit was revealed during his May 17 visit to "Good Morning America."

When "GMA" co-anchor Michael Strahan asked Belushi if he ad-libbed on the "Twin Peaks" set, Belushi said he did it once during a "little party scene." He then stopped himself and turned to his castmates and said, "Ohmigod, should I have not said that?"

He continued: "There's a party scene and it was kind of hectic, and in the middle of the noise, I threw out a line. ... We cut and then (co-creator) David (Lynch) on his little megaphone goes, 'Mr. Belushi?' I said, 'Yes, sir?' And he goes, 'Do I need to bring you to the principal's office?' I said, 'No, sir.'"

Belushi's appearance also apparently involves coffee, a staple in the world of "Twin Peaks."

"I poured a cup of coffee and started my line and (Lynch) went, 'No. Nooooo. The coffee is very important.' I spent 20 seconds pouring and sipping on a cup of coffee before I even started the scene," Belushi told Entertainment Weekly. "So, it's so beautiful to have that freedom to relax. There's no rush, the scenes take their own shape, and you become this organic creature in this world that David creates."